Stop and waste valve.



J. N. MORTIMER.

STOP AND WASTE VALVE. APPLICATION FILED 001225, 1906.

ATTEET NYENTOR 677% JBhnN.NoflLmev C/BaLQLCZQ PATENTED SEPT. 8, 1908".

.' equival UNITED STATES PATENT OFFICE.

JOHN N. MORTIMER, OF CLEVELAND, OHIO, ASSIGNOR TO THE CENTRAL BRASSMANUFAC- TURING COMPANY, OF CLEVELAND, OHIO, A CORPORATION.

STOP AND WASTE VALVE.

Specification of Letters Patent.

Patented Sept. 8, 1908.

Application filed october 26, 1906. Serial No. 340,461.

To all whom it may concern:

Be it known that 1, JOHN N. MORTIMER, a citizen of the United States,residing at Cleveland, in the county of Cuyahoga and State of Ohio, haveinvented certain new and ,is a vertical sectional elevation of theinvention. Fig, 2 is a detail of the lower portion of the valve stem anda section of the valve shell'thereon and Fig. 3 is a side elevation ofthe valve body.

A re resents t e main casing of the valve which as acentral diaphragm 2and a valve seat 3 therein as usual, and a threaded neck 4 at its top.

B represents a bonnet or cap having direct threaded engagement with saidneck as shown, or such connection might be by a coupling nut ifpreferred and'which is an ent and well known connection. Said cap isengagement-of stem O. and has an annular chamber 6 at its bottomprovided with a waste outlet 5 and a valve seat 7 at'its lower edge andwhich is also the bottom of said cap.

Valve D is loosely mounted on head 12 of the valve stem and is providedwith a shoulder 8*about its side adapted to engage seat 7 as well asbeing provided-with a piston portion 9 above seating shoulder 7 adaptedto enter chamber 6 in the cap and close the same in advance of seatingof the valve at'7. This valve also has a seating portion 10 at itsbottom-adapted to occupy valve seat 3 and suitable fibrous or other seatpacking may be employed in or with both said-seating portions 8 and 10,respectively, the travel fromone seat to the other is rev ely slight butstill suflicient to, adequately open the valve fora-free flow ofl't'hewater through the valve when the waste is closed and to close said flowwhen the waste is opened.

structurally the valve comprises ,a solid .main seat in diaphragm 2.

threaded internally at its top for body and an internally threaded shellE, screwed onto reduced portion 1 1 of said body and loosely engagedover head 12 of the valve stem by an inturned flange at its top, so thatsaid valve will always be free to rotate in respect to its stem andgrind its seats to an even surface all around. The tubular extension 9is on this shell, and said extension or piston is designed to so closelyfit within the wall of chamber 6 that it practically cuts off the wasteas soon as it enters said space. The valve as an entirety, therefore,comprises extension 9 as well as the seating portions 8 and 10, and thiscomplete embodiment is free so far as the rotations of the valve spindleare concerned but confined as to axial or direct movement thereon, byreason of shell E engaging over the shoulder on head 12 of the valvestem and said head otherwise abutting against the top of valve body D.The

valve stem, therefore, has positive control of the valve axially but notrotarily.

The piston or extension 9, or its equivalent, may be used, and suchequivalent may be of metal or rubber and adapted, as in the presentconstruction, to shut off the Water gradually, when the valve is raisedfrom its The seating disk 14 on the bottom of the valve is secured tothe valve body by screw 15, but said screw I does not enter the valvestem and hence does not hinder the free rotationofl the valve on itsstem as above described.

By the foregoing construction the valve will seldom, if ever, seat twiceat'exactly the same place, because it will be more or less but notwholly influenced by the rotar movements of the valve stem, and thisafford a ground but not a worn seat for the valve at all three points ofits engagement and absolutely avoid leakage for an indefinite eriod ofservice.

W at I claim is:

1. The casin havlng a main fluid passage and a main va ve seat therein,a bonnet on said casing and a valve stem threaded in said bonnet havinga head on its bottom, said bonnet having an annular chamber with a wasteorifice at its side and provided with a bottom edge adapted to formavalve seat, a valve member mounted on the lower end of said stemcomprising a shell rotatabl and det'achably engaged on the head of saistem and having a piston extension adapted to fit;

i shell and a seating portion at closely in said annular chamber, andhaving its entering edge portion adapted to close the waste chamberimmediately upon initial rotation of the valve stem, and a valve bodyhaving a seating shoulder ada ted to engage the valve seat on saidbonnet f r final sealing of said waste chamber, and said valve bodyhaving a removable connection with said its bottom opposite the mainvalve seat;

2. A stop and waste valve comprising a casing havlng a main water assageand valve seat therein, a chambered bonnet detachably connected withsaid casing having a waste outlet at one side and an annular valve seatat its bottom, a valve stem having threaded connection with said bonnetand provided with a head at its lower end, and a triple seat valvedetachably connected to said stem and head comprising a body havingaseating portion at its bottom for the main valve seat, an annularseating shoulder about said body adapted to engage the bottom valve seaton sald bonnet, and a iston portion detachably connected with sai bodyand'constructed to enter and to closely fit within the bonnet chamberand adapted to initially close the same upon initial opening movement ofthe main valve.

3; A stop and waste valve having a main an annular recess in its topsurface and pack- 40 ing in said recesses, and a threaded fasteningshell adapted to screw upon said screw eX- tension having a tubularpiston portion-rotatablysleeved and secured u on said valve stem andadapted to enter said her and cut off said waste outlet upon initial 0ening movement of the stem and valve t ereon.

In testimony whereof I sign this specification in the presence of twowitnesses.-

JOHN N. MORTIMER. Witnesses:

R. B. MosER, E.. M. FISHER.-

* and rotatably 35 piston cham-

